Meri
abbr. matrix effective refractive index (method) 矩阵（变换）有效折射率（法）
🗣️ 情景例句
Philip, I took Michelle to a school play
Philip,我带Michelle看过学校演出的
Work makes the workman.
工作出工匠。
Frank gently lifted the crockery out of the box an suddenly noticed a miniature painting at the bottom of the packing case.
弗兰克轻轻地把陶器拿出箱子，突然发现在箱底有一幅微型画，